DIY Canon Camera Firmware Enhancements

One of the greatest things about technology isn’t what it does, but it’s what it can do. This is a shining example of this very concept:

If you have a point-and-click digital camera made by Canon, you may be able to turn on all sorts of features usually reserved for more expensive SLRs. That includes live histograms, depth-of-field calculation, under and overexposure highlighting, and — best of all — shooting your pictures in RAW. The secret is CHDK, an enhanced, free software replacement firmware.

I’m going to have to disagree that the best part of this is being able to shoot in RAW mode. Don’t get me wrong, I love using RAW (or NEF as it’s called on my Nikon) but the best part of this enhancement is that fact that you can do scripting in a BASIC like language in the camera. Wow… This is like getting a computer that has predefined programs on it and then discovering the programming tools for it. With these scripts you can do such amazing things as automatically create a series of photos for HDR stacking that can later be run through software to extend the dynamic range of the images. You can run an interactive interval timer to take X number of photos ever X seconds, minutes, or even hours so you could do a time laps study of ice melting or a building being built. Those are just two examples of what can be done with the powerful feature.
One clever thing is that if you make a mistake and screw something up that chance of you ‘bricking’ your camera is quite low. To remove the firmware enhancement you simply remove the CD card and power up the camera. Bingo, everything is back to normal. I for one will be on the lookout for a camera that this will work on.

[via MAKE]
Linux.com :: How to give your low-end Canon digital camera RAW support

Fire Piston

Fire piston, photo from http://www.survivalschool.com/products/fire_starting/Fire_Pistons.htmI happened across such a clever and handy device that everyone should have one. It’s a fire piston. Originating in South East Asia this device works on the same principal as a diesel engine (possibly the where Rudolph Diesel got the idea). A solid piston is rammed home in a tight fitting tube with a bit of dry tinder in the bottom of it. As the gas (air) is compressed with a sharp blow from your hand, it undergoes rapid compression and gets hot. All those air molecules throw off quite a bit of energy when they are all crammed into a tiny space. It gets so hot that it will make the tinder ignite. Pretty darn amazing isn’t it?
If you want to buy or build one there are loads of resources on the ‘Net (just ask Google) but you can read the Wikipedia article if you want from more science about the fire piston.

DIY GPS Jammer

DIY GPS JammerHackers listen up. Everyone understands and enjoys the utilitarian benefits that GPS has brought to our lives but what if it didn’t work any more? I suppose you could build some sort of surface to space missile robot that would systematically seek and destroy all the GPS birds in orbit, but that might attract unwanted attention by the authorities. No, your best bet would be to build a little portable device that just affected a small area. That is exactly what this does. It works by blanketing the GPS L1 frequency (1475.42 MHz) with noise rendering the receiver unable to get an acquisition code. Without one of those it can’t see any satellites. Pretty clever. Now, I have to say that I have no idea if this circuit is going to work, I’ll leave that up to you. I mean, it’s from Phrack magazine after all so that makes it pretty hardcore. Use some common sense in the operation of this device. It might be best used as a conversation starter and that’s all.

[via navigadget]
Low Cost and Portable GPS Jammer

Bicycle Electric-Motor-Assist Project (BEMAP)

An old friend of mine is undertaking a project to add an electric motor to his bike. He has been asking me a bunch of questions about motors and such because I have a bit of a background in building robots. I tried my hand at the old combat robotics thing a while back, had my own robot and even started a real competition. However, the sport turned out to be a great way to burn through money so I had to give it up. Anyway, I gained quite a bit of skill at scrounging for parts and how things like that work. I’ll be more than happy to help out even if is just as a sounding board for ideas.The BEMAP project looks to be pretty cool. So far he has a supply of DC motors from a disused car and some battery packs. Mike is a born scrounger so I’m sure his solution will be very unique.

Bicycle Electric-Motor-Assist Project (BEMAP)

MAKE Halloween Something Special

I don’t usually toot my own horn but this time I’m going to. I was recently asked if MAKE magazine could use a few of my photos of a Halloween display that I had made a few years ago. I agreed to it of course, I mean who wouldn’t want to see their photos in a national magazine? So I signed some paperwork and waited for the issue to hit the stands. All my waiting paid off when I saw the issue on Saturday and saw my photos printed up in glorious color. My photos of glow sticks, black light, and electric arcs fit right in with the other amazing projects that are being showcased in the Halloween issue. If your looking for a way to add a little something to your garage turned haunted house or  even if your just  wanting to  scare the crap out of a coworkers with some automated nasty in the cube farm this is the magazine to buy!

‘Le Magnetique’ Magnetic Fingernail Polish

Le Magnetique fingernail polishThis is a rather unusual application of magnetic principals. The nail polish is applied in a normal way but before you let it dry you hold the magnet (included with the bottle) over the wet polish and let the magnetic particles that are suspended in the pigment arrange themselves. When the lacquer dries the metallic particles are frozen in place and you get some clever patterns. I’m not a user of nail polish myself but I bet I could think of some science projects that this stuff would be good for.
All Lacquered Up: Lancome Le Magnetique